Back in the film days, there was technique of exposing a negative, while it was being developed, which distorted the image, sometime very strikingly. This manipulation had a name, which I cannot ...
Is a soft-focus image just minimally out of focus?
I see a lot of pictures with those "line" effects in the sky and I'm wondering how this technique is called (so I can google how it's done). http://500px.com/photo/3464783